Hyperthermic Intraperitoneal Chemotherapy With Cisplatin During Surgery or Cisplatin Before Surgery for the Treatment of Stage III or IV Ovarian, Fallopian Tube or Peritoneal Cancer

PRIMARY OBJECTIVES:

I. To evaluate the safety and tolerability of intravenous (IV) cisplatin on the day prior to interval cytoreductive surgery (CRS) to administration of hyperthermic intraepithelial chemotherapy (HIPEC) with cisplatin at the completion of interval cytoreductive surgery.

SECONDARY OBJECTIVES:

I. Feasibility of each of the treatment options. II. Treatment delays. III. Perioperative outcomes. IV. Quality of life/patient reported outcomes. V. Recurrence free survival (RFS) and overall survival (OS). VI. Changes to the gut MIcrobiome

OUTLINE:

Patients receive carboplatin IV and paclitaxel IV on day 1. Treatment repeats every 3 weeks for 3-4 cycles in the absence of disease progression or unacceptable toxicity. Within 3-4 weeks following the third or fourth neoadjuvant cycle, patients who achieve complete or partial response undergo interval debulking surgery

Patients are randomized to 1 of 2 arms.

ARM I: Patients receive cisplatin IV the day prior to interval cytoreductive surgery

ARM II: Patients undergo HIPEC and receive cisplatin IV over 90 minutes at the time of interval cytoreductive surgery

All patients undergo stool sample collection and diagnostic imaging throughout the trial.

After completion of study treatment, patients are followed up for up to 30 days.

Inclusion criteria

• Ability to understand (English-speaking), and willingness to sign a written, informed consent
• Age > 18 years old
• Newly diagnosed stage III or IV epithelial (serous, mucinous, or endometrioid) ovarian, fallopian tube or peritoneal cancer diagnosed by:

• Biopsy/histology (either by interventional radiology or laparoscopy) OR
• Cytology; If diagnosis is based on cytology the following criteria must be met:

• Immunohistochemistry on the block from cytology to demonstrate Mullerian origin
• Presence of pelvic mass AND CA 125 > 200kU/I AND CA125/CEA ratio > 25 at initial diagnosis
• Omental cake or other metastases larger than 2 cm in the upper abdomen and/or regional lymph node metastasis irrespective of size (diagnosed by computed tomography [CT]/magnetic resonance imaging [MRI], ultrasound, or laparoscopy)
• Patient planned for or currently receiving neoadjuvant chemotherapy due to the fact that optimal primary CRS was determined not to be feasible by the primary surgeon
• Patient must be planned or scheduled to undergo interval cytoreductive surgery after cycle 3-4 of neoadjuvant surgery
• Completion of three cycles of neoadjuvant chemotherapy (NACT) with standard therapy (carboplatin [area under the curve (AUC) 5-6] day [D]1 + paclitaxel [175 mg/m^2] D1 every 3 weeks)

• Following 3-4 cycles of NACT partial or complete response
• Following 3-4 cycles of NACT at least 50% decrease in CA-125 level between pre-cycle 1 and post-cycle 3/prior to surgery
• Fit for major surgery, American Society of Anesthesiologists (ASA )1 or ASA 2
• Eastern Cooperative Oncology Group (ECOG) performance-status score of 0-2
• Serum creatinine < 1.4 mg/dL
• Creatinine clearance > 60 ml/min (Cockcroft-Gault formula)
• White blood cell count > 3.5 x 10^9 cells/L
• Absolute neutrophil count > 1.5 kg/ul
• Platelets > 100,000/ul
• Total bilirubin within 1.5 x normal institutional limits
• Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional upper limit of normal
• For quality of life assessment, baseline questionnaires should be filled in before randomization

Exclusion criteria

• History of breast cancer or previous malignancy within 5 years prior to inclusion, with the exception of radically excised basal cell or squamous cell skin cancer or carcinoma in situ of the cervix
• Low grade serious carcinoma of the ovary or borderline ovarian tumors
• History or current diagnosis of inflammatory bowel disease
• History of allergic reactions to compounds of similar chemical or biologic composition to cisplatin, carboplatin, and paclitaxel
• Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia
• Patients in whom an optimal or complete cytoreduction cannot be performed will be excluded at the time of surgery and be replaced